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Finding the Fourth Proportional to 293,012.84, 439,373.86 and 93,307.20

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Solution

The fourth proportional to 293,012.84, 439,373.86 and 93,307.20 is: 139,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,012.84 : 439,373.86 = 93,307.20 : x
  2. Step 2: Convert to fraction form
    293,012.84/439,373.86 = 93,307.20/x
  3. Step 3: Cross multiply
    293,012.84x = 439,373.86 × 93,307.20
  4. Step 4: Simplify right side
    293,012.84x = 40,996,744,629.79
  5. Step 5: Solve for x
    x = 40,996,744,629.79/293,012.84
  6. Step 6: Final answer
    x = 139,914.50

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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.