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Finding the Fourth Proportional to 236,437.60, 354,688.80 and 86,641.60

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Solution

The fourth proportional to 236,437.60, 354,688.80 and 86,641.60 is: 129,974.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,437.60 : 354,688.80 = 86,641.60 : x
  2. Step 2: Convert to fraction form
    236,437.60/354,688.80 = 86,641.60/x
  3. Step 3: Cross multiply
    236,437.60x = 354,688.80 × 86,641.60
  4. Step 4: Simplify right side
    236,437.60x = 30,730,805,134.08
  5. Step 5: Solve for x
    x = 30,730,805,134.08/236,437.60
  6. Step 6: Final answer
    x = 129,974.27

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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.