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Finding the Fourth Proportional to 104,463.64, 144,278.52 and 70,413.40

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Solution

The fourth proportional to 104,463.64, 144,278.52 and 70,413.40 is: 97,250.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,463.64 : 144,278.52 = 70,413.40 : x
  2. Step 2: Convert to fraction form
    104,463.64/144,278.52 = 70,413.40/x
  3. Step 3: Cross multiply
    104,463.64x = 144,278.52 × 70,413.40
  4. Step 4: Simplify right side
    104,463.64x = 10,159,141,140.17
  5. Step 5: Solve for x
    x = 10,159,141,140.17/104,463.64
  6. Step 6: Final answer
    x = 97,250.50

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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.