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Finding the Fourth Proportional to 60,970.20, 83,951.92 and 53,374.02

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Solution

The fourth proportional to 60,970.20, 83,951.92 and 53,374.02 is: 73,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,970.20 : 83,951.92 = 53,374.02 : x
  2. Step 2: Convert to fraction form
    60,970.20/83,951.92 = 53,374.02/x
  3. Step 3: Cross multiply
    60,970.20x = 83,951.92 × 53,374.02
  4. Step 4: Simplify right side
    60,970.20x = 4,480,851,457.12
  5. Step 5: Solve for x
    x = 4,480,851,457.12/60,970.20
  6. Step 6: Final answer
    x = 73,492.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.