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Finding the Fourth Proportional to 356,225.45, 534,339.24 and 86,352.51

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Solution

The fourth proportional to 356,225.45, 534,339.24 and 86,352.51 is: 129,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,225.45 : 534,339.24 = 86,352.51 : x
  2. Step 2: Convert to fraction form
    356,225.45/534,339.24 = 86,352.51/x
  3. Step 3: Cross multiply
    356,225.45x = 534,339.24 × 86,352.51
  4. Step 4: Simplify right side
    356,225.45x = 46,141,534,565.49
  5. Step 5: Solve for x
    x = 46,141,534,565.49/356,225.45
  6. Step 6: Final answer
    x = 129,529.02

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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.