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Finding the Fourth Proportional to 70,881.62, 97,702.61 and 47,904.24

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Solution

The fourth proportional to 70,881.62, 97,702.61 and 47,904.24 is: 66,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,881.62 : 97,702.61 = 47,904.24 : x
  2. Step 2: Convert to fraction form
    70,881.62/97,702.61 = 47,904.24/x
  3. Step 3: Cross multiply
    70,881.62x = 97,702.61 × 47,904.24
  4. Step 4: Simplify right side
    70,881.62x = 4,680,369,404.93
  5. Step 5: Solve for x
    x = 4,680,369,404.93/70,881.62
  6. Step 6: Final answer
    x = 66,030.80

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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.