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Finding the Fourth Proportional to 137,061.20, 205,591.80 and 135,095.60

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Solution

The fourth proportional to 137,061.20, 205,591.80 and 135,095.60 is: 202,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,061.20 : 205,591.80 = 135,095.60 : x
  2. Step 2: Convert to fraction form
    137,061.20/205,591.80 = 135,095.60/x
  3. Step 3: Cross multiply
    137,061.20x = 205,591.80 × 135,095.60
  4. Step 4: Simplify right side
    137,061.20x = 27,774,547,576.08
  5. Step 5: Solve for x
    x = 27,774,547,576.08/137,061.20
  6. Step 6: Final answer
    x = 202,643.40

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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.