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Finding the Third Proportional to 87,854,627.53 and 128,547,944.16

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Solution

The third proportional to 87,854,627.53 and 128,547,944.16 is: 188,089,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,854,627.53 : 128,547,944.16 = 128,547,944.16 : x
  2. Step 2: Convert to fraction form
    87,854,627.53/128,547,944.16 = 128,547,944.16/x
  3. Step 3: Cross multiply
    87,854,627.53x = 128,547,944.16 × 128,547,944.16
  4. Step 4: Simplify right side
    87,854,627.53x = 16,524,573,946,798,368
  5. Step 5: Solve for x
    x = 16,524,573,946,798,368/87,854,627.53
  6. Step 6: Final answer
    x = 188,089,966.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.