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Finding the Fourth Proportional to 153,437.58, 211,686.55 and 153,201.03

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Solution

The fourth proportional to 153,437.58, 211,686.55 and 153,201.03 is: 211,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,437.58 : 211,686.55 = 153,201.03 : x
  2. Step 2: Convert to fraction form
    153,437.58/211,686.55 = 153,201.03/x
  3. Step 3: Cross multiply
    153,437.58x = 211,686.55 × 153,201.03
  4. Step 4: Simplify right side
    153,437.58x = 32,430,597,497.15
  5. Step 5: Solve for x
    x = 32,430,597,497.15/153,437.58
  6. Step 6: Final answer
    x = 211,360.20

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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.