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Finding the Fourth Proportional to 165,798.67, 228,802.12 and 90,347.17

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Solution

The fourth proportional to 165,798.67, 228,802.12 and 90,347.17 is: 124,679.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,798.67 : 228,802.12 = 90,347.17 : x
  2. Step 2: Convert to fraction form
    165,798.67/228,802.12 = 90,347.17/x
  3. Step 3: Cross multiply
    165,798.67x = 228,802.12 × 90,347.17
  4. Step 4: Simplify right side
    165,798.67x = 20,671,624,032.00
  5. Step 5: Solve for x
    x = 20,671,624,032.00/165,798.67
  6. Step 6: Final answer
    x = 124,679.07

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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.