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Finding the Fourth Proportional to 151,779.52, 209,261.02 and 124,454.92

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Solution

The fourth proportional to 151,779.52, 209,261.02 and 124,454.92 is: 171,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,779.52 : 209,261.02 = 124,454.92 : x
  2. Step 2: Convert to fraction form
    151,779.52/209,261.02 = 124,454.92/x
  3. Step 3: Cross multiply
    151,779.52x = 209,261.02 × 124,454.92
  4. Step 4: Simplify right side
    151,779.52x = 26,043,563,503.22
  5. Step 5: Solve for x
    x = 26,043,563,503.22/151,779.52
  6. Step 6: Final answer
    x = 171,588.13

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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.