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Finding the Fourth Proportional to 114,130.17, 157,541.99 and 85,917.69

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Solution

The fourth proportional to 114,130.17, 157,541.99 and 85,917.69 is: 118,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,130.17 : 157,541.99 = 85,917.69 : x
  2. Step 2: Convert to fraction form
    114,130.17/157,541.99 = 85,917.69/x
  3. Step 3: Cross multiply
    114,130.17x = 157,541.99 × 85,917.69
  4. Step 4: Simplify right side
    114,130.17x = 13,535,643,429.21
  5. Step 5: Solve for x
    x = 13,535,643,429.21/114,130.17
  6. Step 6: Final answer
    x = 118,598.29

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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.