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Finding the Fourth Proportional to 229,417.70, 316,647.02 and 127,478.18

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Solution

The fourth proportional to 229,417.70, 316,647.02 and 127,478.18 is: 175,948.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,417.70 : 316,647.02 = 127,478.18 : x
  2. Step 2: Convert to fraction form
    229,417.70/316,647.02 = 127,478.18/x
  3. Step 3: Cross multiply
    229,417.70x = 316,647.02 × 127,478.18
  4. Step 4: Simplify right side
    229,417.70x = 40,365,585,812.02
  5. Step 5: Solve for x
    x = 40,365,585,812.02/229,417.70
  6. Step 6: Final answer
    x = 175,948.00

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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.