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Finding the Fourth Proportional to 116,490.80, 174,779.40 and 46,420.40

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Solution

The fourth proportional to 116,490.80, 174,779.40 and 46,420.40 is: 69,647.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,490.80 : 174,779.40 = 46,420.40 : x
  2. Step 2: Convert to fraction form
    116,490.80/174,779.40 = 46,420.40/x
  3. Step 3: Cross multiply
    116,490.80x = 174,779.40 × 46,420.40
  4. Step 4: Simplify right side
    116,490.80x = 8,113,329,659.76
  5. Step 5: Solve for x
    x = 8,113,329,659.76/116,490.80
  6. Step 6: Final answer
    x = 69,647.81

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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.