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Finding the Fourth Proportional to 229,173.32, 316,317.32 and 156,605.60

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Solution

The fourth proportional to 229,173.32, 316,317.32 and 156,605.60 is: 216,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,173.32 : 316,317.32 = 156,605.60 : x
  2. Step 2: Convert to fraction form
    229,173.32/316,317.32 = 156,605.60/x
  3. Step 3: Cross multiply
    229,173.32x = 316,317.32 × 156,605.60
  4. Step 4: Simplify right side
    229,173.32x = 49,537,062,905.96
  5. Step 5: Solve for x
    x = 49,537,062,905.96/229,173.32
  6. Step 6: Final answer
    x = 216,155.45

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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.