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Finding the Fourth Proportional to 358,361.25, 537,529.95 and 105,645.93

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Solution

The fourth proportional to 358,361.25, 537,529.95 and 105,645.93 is: 158,465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,361.25 : 537,529.95 = 105,645.93 : x
  2. Step 2: Convert to fraction form
    358,361.25/537,529.95 = 105,645.93/x
  3. Step 3: Cross multiply
    358,361.25x = 537,529.95 × 105,645.93
  4. Step 4: Simplify right side
    358,361.25x = 56,787,851,470.60
  5. Step 5: Solve for x
    x = 56,787,851,470.60/358,361.25
  6. Step 6: Final answer
    x = 158,465.38

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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.