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Finding the Fourth Proportional to 369,870.48, 554,807.16 and 89,387.28

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Solution

The fourth proportional to 369,870.48, 554,807.16 and 89,387.28 is: 134,081.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,870.48 : 554,807.16 = 89,387.28 : x
  2. Step 2: Convert to fraction form
    369,870.48/554,807.16 = 89,387.28/x
  3. Step 3: Cross multiply
    369,870.48x = 554,807.16 × 89,387.28
  4. Step 4: Simplify right side
    369,870.48x = 49,592,702,956.92
  5. Step 5: Solve for x
    x = 49,592,702,956.92/369,870.48
  6. Step 6: Final answer
    x = 134,081.27

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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.