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Finding the Fourth Proportional to 117,009.70, 175,514.55 and 42,214.30

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Solution

The fourth proportional to 117,009.70, 175,514.55 and 42,214.30 is: 63,321.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,009.70 : 175,514.55 = 42,214.30 : x
  2. Step 2: Convert to fraction form
    117,009.70/175,514.55 = 42,214.30/x
  3. Step 3: Cross multiply
    117,009.70x = 175,514.55 × 42,214.30
  4. Step 4: Simplify right side
    117,009.70x = 7,409,223,868.07
  5. Step 5: Solve for x
    x = 7,409,223,868.07/117,009.70
  6. Step 6: Final answer
    x = 63,321.45

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1.5x scale

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.