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Finding the Fourth Proportional to 358,557.50, 537,839.32 and 102,389.42

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Solution

The fourth proportional to 358,557.50, 537,839.32 and 102,389.42 is: 153,585.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,557.50 : 537,839.32 = 102,389.42 : x
  2. Step 2: Convert to fraction form
    358,557.50/537,839.32 = 102,389.42/x
  3. Step 3: Cross multiply
    358,557.50x = 537,839.32 × 102,389.42
  4. Step 4: Simplify right side
    358,557.50x = 55,069,056,027.99
  5. Step 5: Solve for x
    x = 55,069,056,027.99/358,557.50
  6. Step 6: Final answer
    x = 153,585.01

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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.