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Finding the Fourth Proportional to 356,880.81, 535,151.71 and 207,167.02

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Solution

The fourth proportional to 356,880.81, 535,151.71 and 207,167.02 is: 310,652.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,880.81 : 535,151.71 = 207,167.02 : x
  2. Step 2: Convert to fraction form
    356,880.81/535,151.71 = 207,167.02/x
  3. Step 3: Cross multiply
    356,880.81x = 535,151.71 × 207,167.02
  4. Step 4: Simplify right side
    356,880.81x = 110,865,785,008.60
  5. Step 5: Solve for x
    x = 110,865,785,008.60/356,880.81
  6. Step 6: Final answer
    x = 310,652.13

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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.