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Finding the Fourth Proportional to 124,377.94, 171,643.53 and 70,664.50

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Solution

The fourth proportional to 124,377.94, 171,643.53 and 70,664.50 is: 97,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,377.94 : 171,643.53 = 70,664.50 : x
  2. Step 2: Convert to fraction form
    124,377.94/171,643.53 = 70,664.50/x
  3. Step 3: Cross multiply
    124,377.94x = 171,643.53 × 70,664.50
  4. Step 4: Simplify right side
    124,377.94x = 12,129,104,225.69
  5. Step 5: Solve for x
    x = 12,129,104,225.69/124,377.94
  6. Step 6: Final answer
    x = 97,518.13

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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.