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Finding the Fourth Proportional to 291,629.84, 437,444.71 and 70,013.84

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Solution

The fourth proportional to 291,629.84, 437,444.71 and 70,013.84 is: 105,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,629.84 : 437,444.71 = 70,013.84 : x
  2. Step 2: Convert to fraction form
    291,629.84/437,444.71 = 70,013.84/x
  3. Step 3: Cross multiply
    291,629.84x = 437,444.71 × 70,013.84
  4. Step 4: Simplify right side
    291,629.84x = 30,627,181,572.53
  5. Step 5: Solve for x
    x = 30,627,181,572.53/291,629.84
  6. Step 6: Final answer
    x = 105,020.74

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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.