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Finding the Fourth Proportional to 314,678.56, 471,915.76 and 104,260

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Solution

The fourth proportional to 314,678.56, 471,915.76 and 104,260 is: 156,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,678.56 : 471,915.76 = 104,260 : x
  2. Step 2: Convert to fraction form
    314,678.56/471,915.76 = 104,260/x
  3. Step 3: Cross multiply
    314,678.56x = 471,915.76 × 104,260
  4. Step 4: Simplify right side
    314,678.56x = 49,201,937,137.60
  5. Step 5: Solve for x
    x = 49,201,937,137.60/314,678.56
  6. Step 6: Final answer
    x = 156,356.18

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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.