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Finding the Fourth Proportional to 119,967.52, 165,547.92 and 72,236.32

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Solution

The fourth proportional to 119,967.52, 165,547.92 and 72,236.32 is: 99,681.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,967.52 : 165,547.92 = 72,236.32 : x
  2. Step 2: Convert to fraction form
    119,967.52/165,547.92 = 72,236.32/x
  3. Step 3: Cross multiply
    119,967.52x = 165,547.92 × 72,236.32
  4. Step 4: Simplify right side
    119,967.52x = 11,958,572,524.45
  5. Step 5: Solve for x
    x = 11,958,572,524.45/119,967.52
  6. Step 6: Final answer
    x = 99,681.75

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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.