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Finding the Fourth Proportional to 282,397.53, 389,713.06 and 153,335.93

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Solution

The fourth proportional to 282,397.53, 389,713.06 and 153,335.93 is: 211,606.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,397.53 : 389,713.06 = 153,335.93 : x
  2. Step 2: Convert to fraction form
    282,397.53/389,713.06 = 153,335.93/x
  3. Step 3: Cross multiply
    282,397.53x = 389,713.06 × 153,335.93
  4. Step 4: Simplify right side
    282,397.53x = 59,757,013,721.57
  5. Step 5: Solve for x
    x = 59,757,013,721.57/282,397.53
  6. Step 6: Final answer
    x = 211,606.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.