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Finding the Fourth Proportional to 76,328.49, 114,547.41 and 56,547.48

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Solution

The fourth proportional to 76,328.49, 114,547.41 and 56,547.48 is: 84,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,328.49 : 114,547.41 = 56,547.48 : x
  2. Step 2: Convert to fraction form
    76,328.49/114,547.41 = 56,547.48/x
  3. Step 3: Cross multiply
    76,328.49x = 114,547.41 × 56,547.48
  4. Step 4: Simplify right side
    76,328.49x = 6,477,367,376.03
  5. Step 5: Solve for x
    x = 6,477,367,376.03/76,328.49
  6. Step 6: Final answer
    x = 84,861.73

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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.