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Finding the Fourth Proportional to 72,937.60, 109,406.40 and 62,051.20

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Solution

The fourth proportional to 72,937.60, 109,406.40 and 62,051.20 is: 93,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,937.60 : 109,406.40 = 62,051.20 : x
  2. Step 2: Convert to fraction form
    72,937.60/109,406.40 = 62,051.20/x
  3. Step 3: Cross multiply
    72,937.60x = 109,406.40 × 62,051.20
  4. Step 4: Simplify right side
    72,937.60x = 6,788,798,407.68
  5. Step 5: Solve for x
    x = 6,788,798,407.68/72,937.60
  6. Step 6: Final answer
    x = 93,076.80

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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.