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Finding the Fourth Proportional to 172,398.57, 237,854.64 and 104,393.80

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Solution

The fourth proportional to 172,398.57, 237,854.64 and 104,393.80 is: 144,029.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,398.57 : 237,854.64 = 104,393.80 : x
  2. Step 2: Convert to fraction form
    172,398.57/237,854.64 = 104,393.80/x
  3. Step 3: Cross multiply
    172,398.57x = 237,854.64 × 104,393.80
  4. Step 4: Simplify right side
    172,398.57x = 24,830,549,717.23
  5. Step 5: Solve for x
    x = 24,830,549,717.23/172,398.57
  6. Step 6: Final answer
    x = 144,029.91

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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.