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Finding the Fourth Proportional to 162,709.80, 224,381.80 and 126,886.74

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Solution

The fourth proportional to 162,709.80, 224,381.80 and 126,886.74 is: 174,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,709.80 : 224,381.80 = 126,886.74 : x
  2. Step 2: Convert to fraction form
    162,709.80/224,381.80 = 126,886.74/x
  3. Step 3: Cross multiply
    162,709.80x = 224,381.80 × 126,886.74
  4. Step 4: Simplify right side
    162,709.80x = 28,471,075,117.33
  5. Step 5: Solve for x
    x = 28,471,075,117.33/162,709.80
  6. Step 6: Final answer
    x = 174,980.70

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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.