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Finding the Fourth Proportional to 103,592.99, 142,836.05 and 70,903.17

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Solution

The fourth proportional to 103,592.99, 142,836.05 and 70,903.17 is: 97,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,592.99 : 142,836.05 = 70,903.17 : x
  2. Step 2: Convert to fraction form
    103,592.99/142,836.05 = 70,903.17/x
  3. Step 3: Cross multiply
    103,592.99x = 142,836.05 × 70,903.17
  4. Step 4: Simplify right side
    103,592.99x = 10,127,528,380.76
  5. Step 5: Solve for x
    x = 10,127,528,380.76/103,592.99
  6. Step 6: Final answer
    x = 97,762.69

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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.