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Finding the Fourth Proportional to 373,106.69, 514,888.95 and 211,970.57

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Solution

The fourth proportional to 373,106.69, 514,888.95 and 211,970.57 is: 292,520.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,106.69 : 514,888.95 = 211,970.57 : x
  2. Step 2: Convert to fraction form
    373,106.69/514,888.95 = 211,970.57/x
  3. Step 3: Cross multiply
    373,106.69x = 514,888.95 × 211,970.57
  4. Step 4: Simplify right side
    373,106.69x = 109,141,301,643.76
  5. Step 5: Solve for x
    x = 109,141,301,643.76/373,106.69
  6. Step 6: Final answer
    x = 292,520.36

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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.