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Finding the Fourth Proportional to 153,425.95, 211,810.65 and 107,625.92

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Solution

The fourth proportional to 153,425.95, 211,810.65 and 107,625.92 is: 148,581.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,425.95 : 211,810.65 = 107,625.92 : x
  2. Step 2: Convert to fraction form
    153,425.95/211,810.65 = 107,625.92/x
  3. Step 3: Cross multiply
    153,425.95x = 211,810.65 × 107,625.92
  4. Step 4: Simplify right side
    153,425.95x = 22,796,314,609.40
  5. Step 5: Solve for x
    x = 22,796,314,609.40/153,425.95
  6. Step 6: Final answer
    x = 148,581.87

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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.