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Finding the Fourth Proportional to 159,547.46, 220,172.18 and 87,925.64

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Solution

The fourth proportional to 159,547.46, 220,172.18 and 87,925.64 is: 121,335.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,547.46 : 220,172.18 = 87,925.64 : x
  2. Step 2: Convert to fraction form
    159,547.46/220,172.18 = 87,925.64/x
  3. Step 3: Cross multiply
    159,547.46x = 220,172.18 × 87,925.64
  4. Step 4: Simplify right side
    159,547.46x = 19,358,779,836.70
  5. Step 5: Solve for x
    x = 19,358,779,836.70/159,547.46
  6. Step 6: Final answer
    x = 121,335.56

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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.