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Finding the Fourth Proportional to 478,008.48, 717,032.51 and 141,049.13

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Solution

The fourth proportional to 478,008.48, 717,032.51 and 141,049.13 is: 211,579.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,008.48 : 717,032.51 = 141,049.13 : x
  2. Step 2: Convert to fraction form
    478,008.48/717,032.51 = 141,049.13/x
  3. Step 3: Cross multiply
    478,008.48x = 717,032.51 × 141,049.13
  4. Step 4: Simplify right side
    478,008.48x = 101,136,807,426.81
  5. Step 5: Solve for x
    x = 101,136,807,426.81/478,008.48
  6. Step 6: Final answer
    x = 211,579.53

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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.