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Finding the Fourth Proportional to 229,905.80, 345,117.90 and 177,547.40

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Solution

The fourth proportional to 229,905.80, 345,117.90 and 177,547.40 is: 266,521.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,905.80 : 345,117.90 = 177,547.40 : x
  2. Step 2: Convert to fraction form
    229,905.80/345,117.90 = 177,547.40/x
  3. Step 3: Cross multiply
    229,905.80x = 345,117.90 × 177,547.40
  4. Step 4: Simplify right side
    229,905.80x = 61,274,785,838.46
  5. Step 5: Solve for x
    x = 61,274,785,838.46/229,905.80
  6. Step 6: Final answer
    x = 266,521.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.