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Finding the Fourth Proportional to 369,145.40, 553,718.10 and 182,521.40

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Solution

The fourth proportional to 369,145.40, 553,718.10 and 182,521.40 is: 273,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,145.40 : 553,718.10 = 182,521.40 : x
  2. Step 2: Convert to fraction form
    369,145.40/553,718.10 = 182,521.40/x
  3. Step 3: Cross multiply
    369,145.40x = 553,718.10 × 182,521.40
  4. Step 4: Simplify right side
    369,145.40x = 101,065,402,817.34
  5. Step 5: Solve for x
    x = 101,065,402,817.34/369,145.40
  6. Step 6: Final answer
    x = 273,782.10

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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.