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Finding the Fourth Proportional to 119,545.56, 164,973.95 and 65,830.79

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Solution

The fourth proportional to 119,545.56, 164,973.95 and 65,830.79 is: 90,847.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,545.56 : 164,973.95 = 65,830.79 : x
  2. Step 2: Convert to fraction form
    119,545.56/164,973.95 = 65,830.79/x
  3. Step 3: Cross multiply
    119,545.56x = 164,973.95 × 65,830.79
  4. Step 4: Simplify right side
    119,545.56x = 10,860,365,457.92
  5. Step 5: Solve for x
    x = 10,860,365,457.92/119,545.56
  6. Step 6: Final answer
    x = 90,847.08

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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.