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Finding the Fourth Proportional to 434,151.86, 651,288.95 and 134,656.79

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Solution

The fourth proportional to 434,151.86, 651,288.95 and 134,656.79 is: 202,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,151.86 : 651,288.95 = 134,656.79 : x
  2. Step 2: Convert to fraction form
    434,151.86/651,288.95 = 134,656.79/x
  3. Step 3: Cross multiply
    434,151.86x = 651,288.95 × 134,656.79
  4. Step 4: Simplify right side
    434,151.86x = 87,700,478,696.19
  5. Step 5: Solve for x
    x = 87,700,478,696.19/434,151.86
  6. Step 6: Final answer
    x = 202,004.15

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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.