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Finding the Fourth Proportional to 212,130.68, 292,740.28 and 116,643.56

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Solution

The fourth proportional to 212,130.68, 292,740.28 and 116,643.56 is: 160,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,130.68 : 292,740.28 = 116,643.56 : x
  2. Step 2: Convert to fraction form
    212,130.68/292,740.28 = 116,643.56/x
  3. Step 3: Cross multiply
    212,130.68x = 292,740.28 × 116,643.56
  4. Step 4: Simplify right side
    212,130.68x = 34,146,266,659.29
  5. Step 5: Solve for x
    x = 34,146,266,659.29/212,130.68
  6. Step 6: Final answer
    x = 160,968.08

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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.