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Finding the Fourth Proportional to 317,862.63, 476,792.73 and 81,204.93

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Solution

The fourth proportional to 317,862.63, 476,792.73 and 81,204.93 is: 121,807.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,862.63 : 476,792.73 = 81,204.93 : x
  2. Step 2: Convert to fraction form
    317,862.63/476,792.73 = 81,204.93/x
  3. Step 3: Cross multiply
    317,862.63x = 476,792.73 × 81,204.93
  4. Step 4: Simplify right side
    317,862.63x = 38,717,920,264.16
  5. Step 5: Solve for x
    x = 38,717,920,264.16/317,862.63
  6. Step 6: Final answer
    x = 121,807.08

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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.