Home / 353,179.41-530,102.07-128,756.76

Finding the Fourth Proportional to 353,179.41, 530,102.07 and 128,756.76

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Solution

The fourth proportional to 353,179.41, 530,102.07 and 128,756.76 is: 193,256.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,179.41 : 530,102.07 = 128,756.76 : x
  2. Step 2: Convert to fraction form
    353,179.41/530,102.07 = 128,756.76/x
  3. Step 3: Cross multiply
    353,179.41x = 530,102.07 × 128,756.76
  4. Step 4: Simplify right side
    353,179.41x = 68,254,225,002.49
  5. Step 5: Solve for x
    x = 68,254,225,002.49/353,179.41
  6. Step 6: Final answer
    x = 193,256.52

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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.