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Finding the Fourth Proportional to 98,256.74, 147,413.80 and 31,695.40

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Solution

The fourth proportional to 98,256.74, 147,413.80 and 31,695.40 is: 47,552.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,256.74 : 147,413.80 = 31,695.40 : x
  2. Step 2: Convert to fraction form
    98,256.74/147,413.80 = 31,695.40/x
  3. Step 3: Cross multiply
    98,256.74x = 147,413.80 × 31,695.40
  4. Step 4: Simplify right side
    98,256.74x = 4,672,339,356.52
  5. Step 5: Solve for x
    x = 4,672,339,356.52/98,256.74
  6. Step 6: Final answer
    x = 47,552.35

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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.