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Finding the Fourth Proportional to 70,389.64, 105,544.50 and 62,088.76

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Solution

The fourth proportional to 70,389.64, 105,544.50 and 62,088.76 is: 93,097.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,389.64 : 105,544.50 = 62,088.76 : x
  2. Step 2: Convert to fraction form
    70,389.64/105,544.50 = 62,088.76/x
  3. Step 3: Cross multiply
    70,389.64x = 105,544.50 × 62,088.76
  4. Step 4: Simplify right side
    70,389.64x = 6,553,127,129.82
  5. Step 5: Solve for x
    x = 6,553,127,129.82/70,389.64
  6. Step 6: Final answer
    x = 93,097.89

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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.