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Finding the Fourth Proportional to 228,228.76, 314,953.84 and 127,626.76

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Solution

The fourth proportional to 228,228.76, 314,953.84 and 127,626.76 is: 176,123.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,228.76 : 314,953.84 = 127,626.76 : x
  2. Step 2: Convert to fraction form
    228,228.76/314,953.84 = 127,626.76/x
  3. Step 3: Cross multiply
    228,228.76x = 314,953.84 × 127,626.76
  4. Step 4: Simplify right side
    228,228.76x = 40,196,538,148.76
  5. Step 5: Solve for x
    x = 40,196,538,148.76/228,228.76
  6. Step 6: Final answer
    x = 176,123.89

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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.