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Finding the Fourth Proportional to 85,457.80, 117,929.46 and 46,694.08

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Solution

The fourth proportional to 85,457.80, 117,929.46 and 46,694.08 is: 64,436.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,457.80 : 117,929.46 = 46,694.08 : x
  2. Step 2: Convert to fraction form
    85,457.80/117,929.46 = 46,694.08/x
  3. Step 3: Cross multiply
    85,457.80x = 117,929.46 × 46,694.08
  4. Step 4: Simplify right side
    85,457.80x = 5,506,607,639.60
  5. Step 5: Solve for x
    x = 5,506,607,639.60/85,457.80
  6. Step 6: Final answer
    x = 64,436.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.