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Finding the Fourth Proportional to 153,594.07, 211,952.84 and 85,618.46

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Solution

The fourth proportional to 153,594.07, 211,952.84 and 85,618.46 is: 118,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,594.07 : 211,952.84 = 85,618.46 : x
  2. Step 2: Convert to fraction form
    153,594.07/211,952.84 = 85,618.46/x
  3. Step 3: Cross multiply
    153,594.07x = 211,952.84 × 85,618.46
  4. Step 4: Simplify right side
    153,594.07x = 18,147,075,855.22
  5. Step 5: Solve for x
    x = 18,147,075,855.22/153,594.07
  6. Step 6: Final answer
    x = 118,149.59

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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.