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Finding the Fourth Proportional to 347,810.10, 521,715.15 and 98,492.10

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Solution

The fourth proportional to 347,810.10, 521,715.15 and 98,492.10 is: 147,738.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,810.10 : 521,715.15 = 98,492.10 : x
  2. Step 2: Convert to fraction form
    347,810.10/521,715.15 = 98,492.10/x
  3. Step 3: Cross multiply
    347,810.10x = 521,715.15 × 98,492.10
  4. Step 4: Simplify right side
    347,810.10x = 51,384,820,725.32
  5. Step 5: Solve for x
    x = 51,384,820,725.32/347,810.10
  6. Step 6: Final answer
    x = 147,738.15

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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.