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Finding the Fourth Proportional to 112,881.29, 155,783.19 and 62,580.29

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Solution

The fourth proportional to 112,881.29, 155,783.19 and 62,580.29 is: 86,364.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,881.29 : 155,783.19 = 62,580.29 : x
  2. Step 2: Convert to fraction form
    112,881.29/155,783.19 = 62,580.29/x
  3. Step 3: Cross multiply
    112,881.29x = 155,783.19 × 62,580.29
  4. Step 4: Simplify right side
    112,881.29x = 9,748,956,428.41
  5. Step 5: Solve for x
    x = 9,748,956,428.41/112,881.29
  6. Step 6: Final answer
    x = 86,364.68

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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.