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Finding the Fourth Proportional to 342,133.32, 472,132.02 and 187,088.20

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Solution

The fourth proportional to 342,133.32, 472,132.02 and 187,088.20 is: 258,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,133.32 : 472,132.02 = 187,088.20 : x
  2. Step 2: Convert to fraction form
    342,133.32/472,132.02 = 187,088.20/x
  3. Step 3: Cross multiply
    342,133.32x = 472,132.02 × 187,088.20
  4. Step 4: Simplify right side
    342,133.32x = 88,330,329,784.16
  5. Step 5: Solve for x
    x = 88,330,329,784.16/342,133.32
  6. Step 6: Final answer
    x = 258,175.18

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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.