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Finding the Fourth Proportional to 358,106.40, 537,159.60 and 268,876.80

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Solution

The fourth proportional to 358,106.40, 537,159.60 and 268,876.80 is: 403,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,106.40 : 537,159.60 = 268,876.80 : x
  2. Step 2: Convert to fraction form
    358,106.40/537,159.60 = 268,876.80/x
  3. Step 3: Cross multiply
    358,106.40x = 537,159.60 × 268,876.80
  4. Step 4: Simplify right side
    358,106.40x = 144,429,754,337.28
  5. Step 5: Solve for x
    x = 144,429,754,337.28/358,106.40
  6. Step 6: Final answer
    x = 403,315.20

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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.