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Finding the Fourth Proportional to 97,385.79, 134,307.69 and 68,654.76

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Solution

The fourth proportional to 97,385.79, 134,307.69 and 68,654.76 is: 94,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,385.79 : 134,307.69 = 68,654.76 : x
  2. Step 2: Convert to fraction form
    97,385.79/134,307.69 = 68,654.76/x
  3. Step 3: Cross multiply
    97,385.79x = 134,307.69 × 68,654.76
  4. Step 4: Simplify right side
    97,385.79x = 9,220,861,462.00
  5. Step 5: Solve for x
    x = 9,220,861,462.00/97,385.79
  6. Step 6: Final answer
    x = 94,683.85

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1.5x scale

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.