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Finding the Fourth Proportional to 478,050.68, 717,095.88 and 141,091.40

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Solution

The fourth proportional to 478,050.68, 717,095.88 and 141,091.40 is: 211,642.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,050.68 : 717,095.88 = 141,091.40 : x
  2. Step 2: Convert to fraction form
    478,050.68/717,095.88 = 141,091.40/x
  3. Step 3: Cross multiply
    478,050.68x = 717,095.88 × 141,091.40
  4. Step 4: Simplify right side
    478,050.68x = 101,176,061,643.43
  5. Step 5: Solve for x
    x = 101,176,061,643.43/478,050.68
  6. Step 6: Final answer
    x = 211,642.96

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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.