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Finding the Fourth Proportional to 153,167.61, 211,340.07 and 89,493.11

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Solution

The fourth proportional to 153,167.61, 211,340.07 and 89,493.11 is: 123,482.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,167.61 : 211,340.07 = 89,493.11 : x
  2. Step 2: Convert to fraction form
    153,167.61/211,340.07 = 89,493.11/x
  3. Step 3: Cross multiply
    153,167.61x = 211,340.07 × 89,493.11
  4. Step 4: Simplify right side
    153,167.61x = 18,913,480,131.92
  5. Step 5: Solve for x
    x = 18,913,480,131.92/153,167.61
  6. Step 6: Final answer
    x = 123,482.24

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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.