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Finding the Fourth Proportional to 113,807.86, 157,054.86 and 62,820.61

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Solution

The fourth proportional to 113,807.86, 157,054.86 and 62,820.61 is: 86,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,807.86 : 157,054.86 = 62,820.61 : x
  2. Step 2: Convert to fraction form
    113,807.86/157,054.86 = 62,820.61/x
  3. Step 3: Cross multiply
    113,807.86x = 157,054.86 × 62,820.61
  4. Step 4: Simplify right side
    113,807.86x = 9,866,282,108.66
  5. Step 5: Solve for x
    x = 9,866,282,108.66/113,807.86
  6. Step 6: Final answer
    x = 86,692.45

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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.