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Finding the Fourth Proportional to 358,646.66, 537,883.69 and 105,858.96

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Solution

The fourth proportional to 358,646.66, 537,883.69 and 105,858.96 is: 158,762.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,646.66 : 537,883.69 = 105,858.96 : x
  2. Step 2: Convert to fraction form
    358,646.66/537,883.69 = 105,858.96/x
  3. Step 3: Cross multiply
    358,646.66x = 537,883.69 × 105,858.96
  4. Step 4: Simplify right side
    358,646.66x = 56,939,808,024.36
  5. Step 5: Solve for x
    x = 56,939,808,024.36/358,646.66
  6. Step 6: Final answer
    x = 158,762.97

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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.