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Finding the Fourth Proportional to 124,155.99, 186,307.80 and 65,008.58

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Solution

The fourth proportional to 124,155.99, 186,307.80 and 65,008.58 is: 97,551.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,155.99 : 186,307.80 = 65,008.58 : x
  2. Step 2: Convert to fraction form
    124,155.99/186,307.80 = 65,008.58/x
  3. Step 3: Cross multiply
    124,155.99x = 186,307.80 × 65,008.58
  4. Step 4: Simplify right side
    124,155.99x = 12,111,604,345.60
  5. Step 5: Solve for x
    x = 12,111,604,345.60/124,155.99
  6. Step 6: Final answer
    x = 97,551.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.