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Finding the Fourth Proportional to 347,363.76, 521,045.64 and 98,045.76

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Solution

The fourth proportional to 347,363.76, 521,045.64 and 98,045.76 is: 147,068.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,363.76 : 521,045.64 = 98,045.76 : x
  2. Step 2: Convert to fraction form
    347,363.76/521,045.64 = 98,045.76/x
  3. Step 3: Cross multiply
    347,363.76x = 521,045.64 × 98,045.76
  4. Step 4: Simplify right side
    347,363.76x = 51,086,315,768.49
  5. Step 5: Solve for x
    x = 51,086,315,768.49/347,363.76
  6. Step 6: Final answer
    x = 147,068.64

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1.5x scale

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.