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Finding the Fourth Proportional to 373,106.50, 514,888.70 and 211,970.39

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Solution

The fourth proportional to 373,106.50, 514,888.70 and 211,970.39 is: 292,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,106.50 : 514,888.70 = 211,970.39 : x
  2. Step 2: Convert to fraction form
    373,106.50/514,888.70 = 211,970.39/x
  3. Step 3: Cross multiply
    373,106.50x = 514,888.70 × 211,970.39
  4. Step 4: Simplify right side
    373,106.50x = 109,141,154,911.30
  5. Step 5: Solve for x
    x = 109,141,154,911.30/373,106.50
  6. Step 6: Final answer
    x = 292,520.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.