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Finding the Fourth Proportional to 118,339.07, 163,328.94 and 69,938.93

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Solution

The fourth proportional to 118,339.07, 163,328.94 and 69,938.93 is: 96,528.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,339.07 : 163,328.94 = 69,938.93 : x
  2. Step 2: Convert to fraction form
    118,339.07/163,328.94 = 69,938.93/x
  3. Step 3: Cross multiply
    118,339.07x = 163,328.94 × 69,938.93
  4. Step 4: Simplify right side
    118,339.07x = 11,423,051,301.63
  5. Step 5: Solve for x
    x = 11,423,051,301.63/118,339.07
  6. Step 6: Final answer
    x = 96,528.15

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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.