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Finding the Fourth Proportional to 70,702.08, 97,569.12 and 38,873.00

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Solution

The fourth proportional to 70,702.08, 97,569.12 and 38,873.00 is: 53,644.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,702.08 : 97,569.12 = 38,873.00 : x
  2. Step 2: Convert to fraction form
    70,702.08/97,569.12 = 38,873.00/x
  3. Step 3: Cross multiply
    70,702.08x = 97,569.12 × 38,873.00
  4. Step 4: Simplify right side
    70,702.08x = 3,792,803,913.91
  5. Step 5: Solve for x
    x = 3,792,803,913.91/70,702.08
  6. Step 6: Final answer
    x = 53,644.87

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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.