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Finding the Fourth Proportional to 153,965.76, 212,413.76 and 93,514.88

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Solution

The fourth proportional to 153,965.76, 212,413.76 and 93,514.88 is: 129,014.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,965.76 : 212,413.76 = 93,514.88 : x
  2. Step 2: Convert to fraction form
    153,965.76/212,413.76 = 93,514.88/x
  3. Step 3: Cross multiply
    153,965.76x = 212,413.76 × 93,514.88
  4. Step 4: Simplify right side
    153,965.76x = 19,863,847,276.75
  5. Step 5: Solve for x
    x = 19,863,847,276.75/153,965.76
  6. Step 6: Final answer
    x = 129,014.71

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1.5x scale

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.