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Finding the Fourth Proportional to 239,009.76, 358,576.16 and 70,523.28

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Solution

The fourth proportional to 239,009.76, 358,576.16 and 70,523.28 is: 105,803.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,009.76 : 358,576.16 = 70,523.28 : x
  2. Step 2: Convert to fraction form
    239,009.76/358,576.16 = 70,523.28/x
  3. Step 3: Cross multiply
    239,009.76x = 358,576.16 × 70,523.28
  4. Step 4: Simplify right side
    239,009.76x = 25,287,966,580.39
  5. Step 5: Solve for x
    x = 25,287,966,580.39/239,009.76
  6. Step 6: Final answer
    x = 105,803.07

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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.