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Finding the Fourth Proportional to 519,864.42, 779,871.01 and 160,065.71

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Solution

The fourth proportional to 519,864.42, 779,871.01 and 160,065.71 is: 240,121.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,864.42 : 779,871.01 = 160,065.71 : x
  2. Step 2: Convert to fraction form
    519,864.42/779,871.01 = 160,065.71/x
  3. Step 3: Cross multiply
    519,864.42x = 779,871.01 × 160,065.71
  4. Step 4: Simplify right side
    519,864.42x = 124,830,606,924.07
  5. Step 5: Solve for x
    x = 124,830,606,924.07/519,864.42
  6. Step 6: Final answer
    x = 240,121.47

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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.