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Finding the Fourth Proportional to 91,597.60, 137,266.80 and 56,432.80

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Solution

The fourth proportional to 91,597.60, 137,266.80 and 56,432.80 is: 84,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,597.60 : 137,266.80 = 56,432.80 : x
  2. Step 2: Convert to fraction form
    91,597.60/137,266.80 = 56,432.80/x
  3. Step 3: Cross multiply
    91,597.60x = 137,266.80 × 56,432.80
  4. Step 4: Simplify right side
    91,597.60x = 7,746,349,871.04
  5. Step 5: Solve for x
    x = 7,746,349,871.04/91,597.60
  6. Step 6: Final answer
    x = 84,569.35

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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.