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Finding the Fourth Proportional to 253,248.60, 349,444.14 and 145,797.90

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Solution

The fourth proportional to 253,248.60, 349,444.14 and 145,797.90 is: 201,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,248.60 : 349,444.14 = 145,797.90 : x
  2. Step 2: Convert to fraction form
    253,248.60/349,444.14 = 145,797.90/x
  3. Step 3: Cross multiply
    253,248.60x = 349,444.14 × 145,797.90
  4. Step 4: Simplify right side
    253,248.60x = 50,948,221,779.31
  5. Step 5: Solve for x
    x = 50,948,221,779.31/253,248.60
  6. Step 6: Final answer
    x = 201,178.69

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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.