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Finding the Fourth Proportional to 153,332.00, 211,598.10 and 85,347.51

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Solution

The fourth proportional to 153,332.00, 211,598.10 and 85,347.51 is: 117,779.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,332.00 : 211,598.10 = 85,347.51 : x
  2. Step 2: Convert to fraction form
    153,332.00/211,598.10 = 85,347.51/x
  3. Step 3: Cross multiply
    153,332.00x = 211,598.10 × 85,347.51
  4. Step 4: Simplify right side
    153,332.00x = 18,059,370,955.73
  5. Step 5: Solve for x
    x = 18,059,370,955.73/153,332.00
  6. Step 6: Final answer
    x = 117,779.53

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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.