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Finding the Fourth Proportional to 105,193.60, 157,790.40 and 49,897.60

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Solution

The fourth proportional to 105,193.60, 157,790.40 and 49,897.60 is: 74,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,193.60 : 157,790.40 = 49,897.60 : x
  2. Step 2: Convert to fraction form
    105,193.60/157,790.40 = 49,897.60/x
  3. Step 3: Cross multiply
    105,193.60x = 157,790.40 × 49,897.60
  4. Step 4: Simplify right side
    105,193.60x = 7,873,362,263.04
  5. Step 5: Solve for x
    x = 7,873,362,263.04/105,193.60
  6. Step 6: Final answer
    x = 74,846.40

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1.5x scale

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.