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Finding the Fourth Proportional to 229,670.72, 316,970.52 and 134,209.52

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Solution

The fourth proportional to 229,670.72, 316,970.52 and 134,209.52 is: 185,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,670.72 : 316,970.52 = 134,209.52 : x
  2. Step 2: Convert to fraction form
    229,670.72/316,970.52 = 134,209.52/x
  3. Step 3: Cross multiply
    229,670.72x = 316,970.52 × 134,209.52
  4. Step 4: Simplify right side
    229,670.72x = 42,540,461,343.35
  5. Step 5: Solve for x
    x = 42,540,461,343.35/229,670.72
  6. Step 6: Final answer
    x = 185,223.70

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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.