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Finding the Fourth Proportional to 370,275.93, 555,413.90 and 89,790.75

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Solution

The fourth proportional to 370,275.93, 555,413.90 and 89,790.75 is: 134,686.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,275.93 : 555,413.90 = 89,790.75 : x
  2. Step 2: Convert to fraction form
    370,275.93/555,413.90 = 89,790.75/x
  3. Step 3: Cross multiply
    370,275.93x = 555,413.90 × 89,790.75
  4. Step 4: Simplify right side
    370,275.93x = 49,871,030,192.47
  5. Step 5: Solve for x
    x = 49,871,030,192.47/370,275.93
  6. Step 6: Final answer
    x = 134,686.13

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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.