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Finding the Fourth Proportional to 212,275.56, 292,929.68 and 116,779.80

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Solution

The fourth proportional to 212,275.56, 292,929.68 and 116,779.80 is: 161,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,275.56 : 292,929.68 = 116,779.80 : x
  2. Step 2: Convert to fraction form
    212,275.56/292,929.68 = 116,779.80/x
  3. Step 3: Cross multiply
    212,275.56x = 292,929.68 × 116,779.80
  4. Step 4: Simplify right side
    212,275.56x = 34,208,269,444.46
  5. Step 5: Solve for x
    x = 34,208,269,444.46/212,275.56
  6. Step 6: Final answer
    x = 161,150.30

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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.