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Finding the Fourth Proportional to 153,582.67, 211,954.72 and 93,155.86

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Solution

The fourth proportional to 153,582.67, 211,954.72 and 93,155.86 is: 128,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,582.67 : 211,954.72 = 93,155.86 : x
  2. Step 2: Convert to fraction form
    153,582.67/211,954.72 = 93,155.86/x
  3. Step 3: Cross multiply
    153,582.67x = 211,954.72 × 93,155.86
  4. Step 4: Simplify right side
    153,582.67x = 19,744,823,459.88
  5. Step 5: Solve for x
    x = 19,744,823,459.88/153,582.67
  6. Step 6: Final answer
    x = 128,561.53

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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.