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Finding the Fourth Proportional to 369,294.30, 553,945.59 and 103,038.66

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Solution

The fourth proportional to 369,294.30, 553,945.59 and 103,038.66 is: 154,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,294.30 : 553,945.59 = 103,038.66 : x
  2. Step 2: Convert to fraction form
    369,294.30/553,945.59 = 103,038.66/x
  3. Step 3: Cross multiply
    369,294.30x = 553,945.59 × 103,038.66
  4. Step 4: Simplify right side
    369,294.30x = 57,077,811,306.51
  5. Step 5: Solve for x
    x = 57,077,811,306.51/369,294.30
  6. Step 6: Final answer
    x = 154,559.15

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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.