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Finding the Fourth Proportional to 153,515.82, 211,795.62 and 93,042.84

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Solution

The fourth proportional to 153,515.82, 211,795.62 and 93,042.84 is: 128,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,515.82 : 211,795.62 = 93,042.84 : x
  2. Step 2: Convert to fraction form
    153,515.82/211,795.62 = 93,042.84/x
  3. Step 3: Cross multiply
    153,515.82x = 211,795.62 × 93,042.84
  4. Step 4: Simplify right side
    153,515.82x = 19,706,065,984.36
  5. Step 5: Solve for x
    x = 19,706,065,984.36/153,515.82
  6. Step 6: Final answer
    x = 128,365.05

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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.