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Finding the Fourth Proportional to 114,088.90, 157,455.90 and 68,790.06

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Solution

The fourth proportional to 114,088.90, 157,455.90 and 68,790.06 is: 94,938.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,088.90 : 157,455.90 = 68,790.06 : x
  2. Step 2: Convert to fraction form
    114,088.90/157,455.90 = 68,790.06/x
  3. Step 3: Cross multiply
    114,088.90x = 157,455.90 × 68,790.06
  4. Step 4: Simplify right side
    114,088.90x = 10,831,400,808.35
  5. Step 5: Solve for x
    x = 10,831,400,808.35/114,088.90
  6. Step 6: Final answer
    x = 94,938.25

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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.