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Finding the Fourth Proportional to 153,219.84, 211,547.52 and 112,938.24

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Solution

The fourth proportional to 153,219.84, 211,547.52 and 112,938.24 is: 155,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,219.84 : 211,547.52 = 112,938.24 : x
  2. Step 2: Convert to fraction form
    153,219.84/211,547.52 = 112,938.24/x
  3. Step 3: Cross multiply
    153,219.84x = 211,547.52 × 112,938.24
  4. Step 4: Simplify right side
    153,219.84x = 23,891,804,585.16
  5. Step 5: Solve for x
    x = 23,891,804,585.16/153,219.84
  6. Step 6: Final answer
    x = 155,931.53

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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.