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Finding the Fourth Proportional to 292,544.52, 438,816.80 and 70,928.52

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Solution

The fourth proportional to 292,544.52, 438,816.80 and 70,928.52 is: 106,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,544.52 : 438,816.80 = 70,928.52 : x
  2. Step 2: Convert to fraction form
    292,544.52/438,816.80 = 70,928.52/x
  3. Step 3: Cross multiply
    292,544.52x = 438,816.80 × 70,928.52
  4. Step 4: Simplify right side
    292,544.52x = 31,124,626,175.14
  5. Step 5: Solve for x
    x = 31,124,626,175.14/292,544.52
  6. Step 6: Final answer
    x = 106,392.78

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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.