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Finding the Fourth Proportional to 193,009, 266,430.58 and 125,084.28

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Solution

The fourth proportional to 193,009, 266,430.58 and 125,084.28 is: 172,666.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,009 : 266,430.58 = 125,084.28 : x
  2. Step 2: Convert to fraction form
    193,009/266,430.58 = 125,084.28/x
  3. Step 3: Cross multiply
    193,009x = 266,430.58 × 125,084.28
  4. Step 4: Simplify right side
    193,009x = 33,326,277,269.28
  5. Step 5: Solve for x
    x = 33,326,277,269.28/193,009
  6. Step 6: Final answer
    x = 172,666.96

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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.