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Finding the Fourth Proportional to 153,034.65, 211,104.63 and 97,740.81

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Solution

The fourth proportional to 153,034.65, 211,104.63 and 97,740.81 is: 134,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,034.65 : 211,104.63 = 97,740.81 : x
  2. Step 2: Convert to fraction form
    153,034.65/211,104.63 = 97,740.81/x
  3. Step 3: Cross multiply
    153,034.65x = 211,104.63 × 97,740.81
  4. Step 4: Simplify right side
    153,034.65x = 20,633,537,530.95
  5. Step 5: Solve for x
    x = 20,633,537,530.95/153,034.65
  6. Step 6: Final answer
    x = 134,829.19

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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.