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Finding the Fourth Proportional to 97,251.60, 145,877.40 and 57,788.40

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Solution

The fourth proportional to 97,251.60, 145,877.40 and 57,788.40 is: 86,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,251.60 : 145,877.40 = 57,788.40 : x
  2. Step 2: Convert to fraction form
    97,251.60/145,877.40 = 57,788.40/x
  3. Step 3: Cross multiply
    97,251.60x = 145,877.40 × 57,788.40
  4. Step 4: Simplify right side
    97,251.60x = 8,430,021,542.16
  5. Step 5: Solve for x
    x = 8,430,021,542.16/97,251.60
  6. Step 6: Final answer
    x = 86,682.60

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1.5x scale

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.