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Finding the Fourth Proportional to 210,641.52, 315,962.88 and 60,894

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Solution

The fourth proportional to 210,641.52, 315,962.88 and 60,894 is: 91,341.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,641.52 : 315,962.88 = 60,894 : x
  2. Step 2: Convert to fraction form
    210,641.52/315,962.88 = 60,894/x
  3. Step 3: Cross multiply
    210,641.52x = 315,962.88 × 60,894
  4. Step 4: Simplify right side
    210,641.52x = 19,240,243,614.72
  5. Step 5: Solve for x
    x = 19,240,243,614.72/210,641.52
  6. Step 6: Final answer
    x = 91,341.17

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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.