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Finding the Fourth Proportional to 212,137.61, 292,751.01 and 116,650.49

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Solution

The fourth proportional to 212,137.61, 292,751.01 and 116,650.49 is: 160,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,137.61 : 292,751.01 = 116,650.49 : x
  2. Step 2: Convert to fraction form
    212,137.61/292,751.01 = 116,650.49/x
  3. Step 3: Cross multiply
    212,137.61x = 292,751.01 × 116,650.49
  4. Step 4: Simplify right side
    212,137.61x = 34,149,547,300.74
  5. Step 5: Solve for x
    x = 34,149,547,300.74/212,137.61
  6. Step 6: Final answer
    x = 160,978.28

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1.5x scale

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.