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Finding the Fourth Proportional to 369,794.40, 554,271.15 and 156,429.16

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Solution

The fourth proportional to 369,794.40, 554,271.15 and 156,429.16 is: 234,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,794.40 : 554,271.15 = 156,429.16 : x
  2. Step 2: Convert to fraction form
    369,794.40/554,271.15 = 156,429.16/x
  3. Step 3: Cross multiply
    369,794.40x = 554,271.15 × 156,429.16
  4. Step 4: Simplify right side
    369,794.40x = 86,704,169,607.67
  5. Step 5: Solve for x
    x = 86,704,169,607.67/369,794.40
  6. Step 6: Final answer
    x = 234,465.88

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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.