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Finding the Fourth Proportional to 153,365.00, 211,648.37 and 83,518.89

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Solution

The fourth proportional to 153,365.00, 211,648.37 and 83,518.89 is: 115,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,365.00 : 211,648.37 = 83,518.89 : x
  2. Step 2: Convert to fraction form
    153,365.00/211,648.37 = 83,518.89/x
  3. Step 3: Cross multiply
    153,365.00x = 211,648.37 × 83,518.89
  4. Step 4: Simplify right side
    153,365.00x = 17,676,636,515.11
  5. Step 5: Solve for x
    x = 17,676,636,515.11/153,365.00
  6. Step 6: Final answer
    x = 115,258.61

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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.