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Finding the Fourth Proportional to 64,590,482.95, 89,137,018.95 and 35,223,422.34

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Solution

The fourth proportional to 64,590,482.95, 89,137,018.95 and 35,223,422.34 is: 48,609,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,590,482.95 : 89,137,018.95 = 35,223,422.34 : x
  2. Step 2: Convert to fraction form
    64,590,482.95/89,137,018.95 = 35,223,422.34/x
  3. Step 3: Cross multiply
    64,590,482.95x = 89,137,018.95 × 35,223,422.34
  4. Step 4: Simplify right side
    64,590,482.95x = 3,139,710,864,604,434
  5. Step 5: Solve for x
    x = 3,139,710,864,604,434/64,590,482.95
  6. Step 6: Final answer
    x = 48,609,496.65

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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.