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Finding the Fourth Proportional to 239,499.64, 359,054.64 and 89,656

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Solution

The fourth proportional to 239,499.64, 359,054.64 and 89,656 is: 134,411.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,499.64 : 359,054.64 = 89,656 : x
  2. Step 2: Convert to fraction form
    239,499.64/359,054.64 = 89,656/x
  3. Step 3: Cross multiply
    239,499.64x = 359,054.64 × 89,656
  4. Step 4: Simplify right side
    239,499.64x = 32,191,402,803.84
  5. Step 5: Solve for x
    x = 32,191,402,803.84/239,499.64
  6. Step 6: Final answer
    x = 134,411.07

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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.