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Finding the Fourth Proportional to 157,603,686.40, 236,405,529.60 and 148,675,477.60

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Solution

The fourth proportional to 157,603,686.40, 236,405,529.60 and 148,675,477.60 is: 223,013,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,603,686.40 : 236,405,529.60 = 148,675,477.60 : x
  2. Step 2: Convert to fraction form
    157,603,686.40/236,405,529.60 = 148,675,477.60/x
  3. Step 3: Cross multiply
    157,603,686.40x = 236,405,529.60 × 148,675,477.60
  4. Step 4: Simplify right side
    157,603,686.40x = 35,147,705,020,560,936
  5. Step 5: Solve for x
    x = 35,147,705,020,560,936/157,603,686.40
  6. Step 6: Final answer
    x = 223,013,216.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.