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Finding the Fourth Proportional to 528,061.65, 791,776.14 and 168,077.00

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Solution

The fourth proportional to 528,061.65, 791,776.14 and 168,077.00 is: 252,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,061.65 : 791,776.14 = 168,077.00 : x
  2. Step 2: Convert to fraction form
    528,061.65/791,776.14 = 168,077.00/x
  3. Step 3: Cross multiply
    528,061.65x = 791,776.14 × 168,077.00
  4. Step 4: Simplify right side
    528,061.65x = 133,079,354,323.90
  5. Step 5: Solve for x
    x = 133,079,354,323.90/528,061.65
  6. Step 6: Final answer
    x = 252,014.81

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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.