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Finding the Fourth Proportional to 113,770.51, 157,002.20 and 62,784.25

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Solution

The fourth proportional to 113,770.51, 157,002.20 and 62,784.25 is: 86,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,770.51 : 157,002.20 = 62,784.25 : x
  2. Step 2: Convert to fraction form
    113,770.51/157,002.20 = 62,784.25/x
  3. Step 3: Cross multiply
    113,770.51x = 157,002.20 × 62,784.25
  4. Step 4: Simplify right side
    113,770.51x = 9,857,264,904.36
  5. Step 5: Solve for x
    x = 9,857,264,904.36/113,770.51
  6. Step 6: Final answer
    x = 86,641.65

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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.