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Finding the Fourth Proportional to 99,051.40, 148,577.10 and 93,219.40

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Solution

The fourth proportional to 99,051.40, 148,577.10 and 93,219.40 is: 139,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,051.40 : 148,577.10 = 93,219.40 : x
  2. Step 2: Convert to fraction form
    99,051.40/148,577.10 = 93,219.40/x
  3. Step 3: Cross multiply
    99,051.40x = 148,577.10 × 93,219.40
  4. Step 4: Simplify right side
    99,051.40x = 13,850,268,115.74
  5. Step 5: Solve for x
    x = 13,850,268,115.74/99,051.40
  6. Step 6: Final answer
    x = 139,829.10

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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.