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Finding the Fourth Proportional to 144,316.68, 216,238.37 and 101,990.04

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Solution

The fourth proportional to 144,316.68, 216,238.37 and 101,990.04 is: 152,817.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,316.68 : 216,238.37 = 101,990.04 : x
  2. Step 2: Convert to fraction form
    144,316.68/216,238.37 = 101,990.04/x
  3. Step 3: Cross multiply
    144,316.68x = 216,238.37 × 101,990.04
  4. Step 4: Simplify right side
    144,316.68x = 22,054,159,495.88
  5. Step 5: Solve for x
    x = 22,054,159,495.88/144,316.68
  6. Step 6: Final answer
    x = 152,817.81

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1.5x scale

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.