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Finding the Fourth Proportional to 127,277, 175,642.32 and 70,688.84

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Solution

The fourth proportional to 127,277, 175,642.32 and 70,688.84 is: 97,550.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,277 : 175,642.32 = 70,688.84 : x
  2. Step 2: Convert to fraction form
    127,277/175,642.32 = 70,688.84/x
  3. Step 3: Cross multiply
    127,277x = 175,642.32 × 70,688.84
  4. Step 4: Simplify right side
    127,277x = 12,415,951,855.71
  5. Step 5: Solve for x
    x = 12,415,951,855.71/127,277
  6. Step 6: Final answer
    x = 97,550.63

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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.