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Finding the Fourth Proportional to 208,291.93, 287,442.29 and 112,798.60

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Solution

The fourth proportional to 208,291.93, 287,442.29 and 112,798.60 is: 155,661.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,291.93 : 287,442.29 = 112,798.60 : x
  2. Step 2: Convert to fraction form
    208,291.93/287,442.29 = 112,798.60/x
  3. Step 3: Cross multiply
    208,291.93x = 287,442.29 × 112,798.60
  4. Step 4: Simplify right side
    208,291.93x = 32,423,087,892.79
  5. Step 5: Solve for x
    x = 32,423,087,892.79/208,291.93
  6. Step 6: Final answer
    x = 155,661.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.