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Finding the Fourth Proportional to 104,705.60, 157,058.40 and 62,715.20

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Solution

The fourth proportional to 104,705.60, 157,058.40 and 62,715.20 is: 94,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,705.60 : 157,058.40 = 62,715.20 : x
  2. Step 2: Convert to fraction form
    104,705.60/157,058.40 = 62,715.20/x
  3. Step 3: Cross multiply
    104,705.60x = 157,058.40 × 62,715.20
  4. Step 4: Simplify right side
    104,705.60x = 9,849,948,967.68
  5. Step 5: Solve for x
    x = 9,849,948,967.68/104,705.60
  6. Step 6: Final answer
    x = 94,072.80

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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.