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Finding the Fourth Proportional to 356,104.35, 534,209.31 and 103,386.92

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Solution

The fourth proportional to 356,104.35, 534,209.31 and 103,386.92 is: 155,095.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,104.35 : 534,209.31 = 103,386.92 : x
  2. Step 2: Convert to fraction form
    356,104.35/534,209.31 = 103,386.92/x
  3. Step 3: Cross multiply
    356,104.35x = 534,209.31 × 103,386.92
  4. Step 4: Simplify right side
    356,104.35x = 55,230,252,525.18
  5. Step 5: Solve for x
    x = 55,230,252,525.18/356,104.35
  6. Step 6: Final answer
    x = 155,095.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.