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Finding the Fourth Proportional to 347,688,662.80, 521,595,979.80 and 174,730,205.20

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Solution

The fourth proportional to 347,688,662.80, 521,595,979.80 and 174,730,205.20 is: 262,126,961.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,688,662.80 : 521,595,979.80 = 174,730,205.20 : x
  2. Step 2: Convert to fraction form
    347,688,662.80/521,595,979.80 = 174,730,205.20/x
  3. Step 3: Cross multiply
    347,688,662.80x = 521,595,979.80 × 174,730,205.20
  4. Step 4: Simplify right side
    347,688,662.80x = 91,138,572,581,949,056
  5. Step 5: Solve for x
    x = 91,138,572,581,949,056/347,688,662.80
  6. Step 6: Final answer
    x = 262,126,961.08

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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.