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Finding the Fourth Proportional to 354,710.60, 532,065.90 and 105,392.60

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Solution

The fourth proportional to 354,710.60, 532,065.90 and 105,392.60 is: 158,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,710.60 : 532,065.90 = 105,392.60 : x
  2. Step 2: Convert to fraction form
    354,710.60/532,065.90 = 105,392.60/x
  3. Step 3: Cross multiply
    354,710.60x = 532,065.90 × 105,392.60
  4. Step 4: Simplify right side
    354,710.60x = 56,075,808,572.34
  5. Step 5: Solve for x
    x = 56,075,808,572.34/354,710.60
  6. Step 6: Final answer
    x = 158,088.90

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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.