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Finding the Fourth Proportional to 186,603.36, 257,354.16 and 157,673.46

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Solution

The fourth proportional to 186,603.36, 257,354.16 and 157,673.46 is: 217,455.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,603.36 : 257,354.16 = 157,673.46 : x
  2. Step 2: Convert to fraction form
    186,603.36/257,354.16 = 157,673.46/x
  3. Step 3: Cross multiply
    186,603.36x = 257,354.16 × 157,673.46
  4. Step 4: Simplify right side
    186,603.36x = 40,577,920,852.59
  5. Step 5: Solve for x
    x = 40,577,920,852.59/186,603.36
  6. Step 6: Final answer
    x = 217,455.47

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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.