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Finding the Fourth Proportional to 368,675.69, 553,043.37 and 102,436.23

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Solution

The fourth proportional to 368,675.69, 553,043.37 and 102,436.23 is: 153,662.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,675.69 : 553,043.37 = 102,436.23 : x
  2. Step 2: Convert to fraction form
    368,675.69/553,043.37 = 102,436.23/x
  3. Step 3: Cross multiply
    368,675.69x = 553,043.37 × 102,436.23
  4. Step 4: Simplify right side
    368,675.69x = 56,651,677,849.30
  5. Step 5: Solve for x
    x = 56,651,677,849.30/368,675.69
  6. Step 6: Final answer
    x = 153,662.64

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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.