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Finding the Fourth Proportional to 127,356.41, 175,697.34 and 79,526.72

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Solution

The fourth proportional to 127,356.41, 175,697.34 and 79,526.72 is: 109,712.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,356.41 : 175,697.34 = 79,526.72 : x
  2. Step 2: Convert to fraction form
    127,356.41/175,697.34 = 79,526.72/x
  3. Step 3: Cross multiply
    127,356.41x = 175,697.34 × 79,526.72
  4. Step 4: Simplify right side
    127,356.41x = 13,972,633,303.94
  5. Step 5: Solve for x
    x = 13,972,633,303.94/127,356.41
  6. Step 6: Final answer
    x = 109,712.84

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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.