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Finding the Fourth Proportional to 369,294.80, 553,946.34 and 103,039.16

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Solution

The fourth proportional to 369,294.80, 553,946.34 and 103,039.16 is: 154,559.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,294.80 : 553,946.34 = 103,039.16 : x
  2. Step 2: Convert to fraction form
    369,294.80/553,946.34 = 103,039.16/x
  3. Step 3: Cross multiply
    369,294.80x = 553,946.34 × 103,039.16
  4. Step 4: Simplify right side
    369,294.80x = 57,078,165,558.67
  5. Step 5: Solve for x
    x = 57,078,165,558.67/369,294.80
  6. Step 6: Final answer
    x = 154,559.90

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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.