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Finding the Fourth Proportional to 117,547.52, 162,230.40 and 72,842.24

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Solution

The fourth proportional to 117,547.52, 162,230.40 and 72,842.24 is: 100,531.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,547.52 : 162,230.40 = 72,842.24 : x
  2. Step 2: Convert to fraction form
    117,547.52/162,230.40 = 72,842.24/x
  3. Step 3: Cross multiply
    117,547.52x = 162,230.40 × 72,842.24
  4. Step 4: Simplify right side
    117,547.52x = 11,817,225,732.10
  5. Step 5: Solve for x
    x = 11,817,225,732.10/117,547.52
  6. Step 6: Final answer
    x = 100,531.48

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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.