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Finding the Fourth Proportional to 153,607.55, 215,672.65 and 153,607.55

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Solution

The fourth proportional to 153,607.55, 215,672.65 and 153,607.55 is: 215,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,607.55 : 215,672.65 = 153,607.55 : x
  2. Step 2: Convert to fraction form
    153,607.55/215,672.65 = 153,607.55/x
  3. Step 3: Cross multiply
    153,607.55x = 215,672.65 × 153,607.55
  4. Step 4: Simplify right side
    153,607.55x = 33,128,947,368.51
  5. Step 5: Solve for x
    x = 33,128,947,368.51/153,607.55
  6. Step 6: Final answer
    x = 215,672.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.