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Finding the Fourth Proportional to 155,317.60, 232,822.80 and 61,698.40

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Solution

The fourth proportional to 155,317.60, 232,822.80 and 61,698.40 is: 92,486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,317.60 : 232,822.80 = 61,698.40 : x
  2. Step 2: Convert to fraction form
    155,317.60/232,822.80 = 61,698.40/x
  3. Step 3: Cross multiply
    155,317.60x = 232,822.80 × 61,698.40
  4. Step 4: Simplify right side
    155,317.60x = 14,364,794,243.52
  5. Step 5: Solve for x
    x = 14,364,794,243.52/155,317.60
  6. Step 6: Final answer
    x = 92,486.58

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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.