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Finding the Fourth Proportional to 172,886.60, 238,574.36 and 96,413.59

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Solution

The fourth proportional to 172,886.60, 238,574.36 and 96,413.59 is: 133,045.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,886.60 : 238,574.36 = 96,413.59 : x
  2. Step 2: Convert to fraction form
    172,886.60/238,574.36 = 96,413.59/x
  3. Step 3: Cross multiply
    172,886.60x = 238,574.36 × 96,413.59
  4. Step 4: Simplify right side
    172,886.60x = 23,001,811,068.80
  5. Step 5: Solve for x
    x = 23,001,811,068.80/172,886.60
  6. Step 6: Final answer
    x = 133,045.65

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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.