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Finding the Fourth Proportional to 229,959.85, 317,341.42 and 127,985.29

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Solution

The fourth proportional to 229,959.85, 317,341.42 and 127,985.29 is: 176,617.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,959.85 : 317,341.42 = 127,985.29 : x
  2. Step 2: Convert to fraction form
    229,959.85/317,341.42 = 127,985.29/x
  3. Step 3: Cross multiply
    229,959.85x = 317,341.42 × 127,985.29
  4. Step 4: Simplify right side
    229,959.85x = 40,615,033,667.71
  5. Step 5: Solve for x
    x = 40,615,033,667.71/229,959.85
  6. Step 6: Final answer
    x = 176,617.93

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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.