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Finding the Fourth Proportional to 369,852.84, 554,842.56 and 117,128.58

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Solution

The fourth proportional to 369,852.84, 554,842.56 and 117,128.58 is: 175,712.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,852.84 : 554,842.56 = 117,128.58 : x
  2. Step 2: Convert to fraction form
    369,852.84/554,842.56 = 117,128.58/x
  3. Step 3: Cross multiply
    369,852.84x = 554,842.56 × 117,128.58
  4. Step 4: Simplify right side
    369,852.84x = 64,987,921,176.36
  5. Step 5: Solve for x
    x = 64,987,921,176.36/369,852.84
  6. Step 6: Final answer
    x = 175,712.92

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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.