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Finding the Fourth Proportional to 369,312.84, 553,859.91 and 103,009.14

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Solution

The fourth proportional to 369,312.84, 553,859.91 and 103,009.14 is: 154,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,312.84 : 553,859.91 = 103,009.14 : x
  2. Step 2: Convert to fraction form
    369,312.84/553,859.91 = 103,009.14/x
  3. Step 3: Cross multiply
    369,312.84x = 553,859.91 × 103,009.14
  4. Step 4: Simplify right side
    369,312.84x = 57,052,633,009.58
  5. Step 5: Solve for x
    x = 57,052,633,009.58/369,312.84
  6. Step 6: Final answer
    x = 154,483.21

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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.