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Finding the Fourth Proportional to 358,503.11, 537,769.50 and 105,783.59

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Solution

The fourth proportional to 358,503.11, 537,769.50 and 105,783.59 is: 158,679.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,503.11 : 537,769.50 = 105,783.59 : x
  2. Step 2: Convert to fraction form
    358,503.11/537,769.50 = 105,783.59/x
  3. Step 3: Cross multiply
    358,503.11x = 537,769.50 × 105,783.59
  4. Step 4: Simplify right side
    358,503.11x = 56,887,189,118.01
  5. Step 5: Solve for x
    x = 56,887,189,118.01/358,503.11
  6. Step 6: Final answer
    x = 158,679.77

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1.5x scale

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.