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Finding the Fourth Proportional to 369,090.80, 553,636.56 and 102,852.08

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Solution

The fourth proportional to 369,090.80, 553,636.56 and 102,852.08 is: 154,278.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,090.80 : 553,636.56 = 102,852.08 : x
  2. Step 2: Convert to fraction form
    369,090.80/553,636.56 = 102,852.08/x
  3. Step 3: Cross multiply
    369,090.80x = 553,636.56 × 102,852.08
  4. Step 4: Simplify right side
    369,090.80x = 56,942,671,760.04
  5. Step 5: Solve for x
    x = 56,942,671,760.04/369,090.80
  6. Step 6: Final answer
    x = 154,278.22

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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.